From a75e5b878074ba1507e1cc550d96e3b6793fe99a Mon Sep 17 00:00:00 2001
From: osman sonmezturk <osmansonmezturk@gmail.com>
Date: Thu, 23 Nov 2023 17:01:53 +0300
Subject: [PATCH] holdstation integration

---
 .../providers/zksync-era/holdstation/index.ts | 30 +++++++++++++++++++
 1 file changed, 30 insertions(+)
 create mode 100644 src/factory/providers/zksync-era/holdstation/index.ts

diff --git a/src/factory/providers/zksync-era/holdstation/index.ts b/src/factory/providers/zksync-era/holdstation/index.ts
new file mode 100644
index 00000000..4bf91cb1
--- /dev/null
+++ b/src/factory/providers/zksync-era/holdstation/index.ts
@@ -0,0 +1,30 @@
+import util from '../../../../util/blockchainUtil';
+import formatter from '../../../../util/formatter';
+import { ITvlParams, ITvlReturn } from '../../../../interfaces/ITvl';
+import ERC20_ABI from '../../../../constants/abi/erc20.json';
+
+const START_BLOCK = 3242317;
+const VAULT_ADDRESS = '0xaf08a9d918f16332F22cf8Dc9ABE9D9E14DdcbC2';
+const USDC = '0x3355df6d4c9c3035724fd0e3914de96a5a83aaf4';
+async function tvl(params: ITvlParams): Promise<Partial<ITvlReturn>> {
+  const { block, chain, provider, web3 } = params;
+  const balances = {};
+  if (block < START_BLOCK) {
+    return { balances };
+  }
+
+  const usdcBalance = await util.executeMultiCallsOfTarget(
+    USDC,
+    ERC20_ABI,
+    'balanceOf',
+    [VAULT_ADDRESS],
+    block,
+    chain,
+    web3,
+  );
+  formatter.convertBalancesToFixed(balances);
+
+  return { balances: { [USDC]: usdcBalance.toString() } };
+}
+
+export { tvl };